<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var a = 1;
        document.write(typeof a);
        var hours = 89;
        var day = 89/24;
        var day1 = parseInt(day);
        var hour = 89%24;
        document.write((89-(89%24))/24,"天",89%24,"小时");
        document.write(day1+'天'+hour+'小时');
        document.write(day1);
        document.write(hour);
    </script>
</body>
</html>